... notices are standard public health practice during measles outbreaks. Alerts of this sort may also warn that someone with measles had been in a crowded public location — an airport, a shopping mall, a theme park.
That suggests that it was changes in gay and bisexual men's sexual behaviors, not the vaccine, that caused the outbreak to subside, researchers concluded.
Those who received at least two vaccinations and had fewer repeat infections, and those who were infected with later variants of SARS-CoV-2 had lower measures of cognitive decline.
...A new CDC report finds that the updated (2023-2024) COVID-19 vaccines cut the risk in half for visiting the emergency department, urgent care, or being hospitalized with COVID-19 for most people.
In 2020, all the precautions that helped people avoid Covid had an unexpected benefit: An entire branch of the flu’s family tree, a B strain that geneticists call the Yamagata clade, disappeared, and it hasn’t been detected since.
Researchers also found that vaccination against Covid, with either mRNA or viral vector shot, reduced the risk of developing a new autoimmune disease. They did not spell out in the study exactly how much vaccines reduced the risk of AIRDs.
the researchers found that long COVID was associated with how quickly inflammation and low iron levels regulated after acute infection. People who took a longer time to demonstrate regulation, and had more severe initial infections, were at an increased risk of long COVID.
Officials generally are pleased if a flu vaccine is 40% to 60% effective.
The shots tend to do better when they are well matched against the circulating flu strains. Officials say that’s what’s happened during this — relatively typical — flu season.
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